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参数资料
| 型号： | LTC6803IG-3#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 35/40页 |
| 文件大小： | 0K |
| 描述： | IC MONITOR BATT STACK 44-SSOP |
| 标准包装： | 2,000 |
| 功能： | 电池监控器，过压/欠压保护 |
| 电池化学： | 多化学成分，超级电容器 |
| 电源电压： | 4 V ~ 55 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-FSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 44-SSOP |
| 包装： | 带卷 (TR) |
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LTC6803-1/LTC6803-3
APPLICATIONS INFORMATION
CELLGROUP +
BLM31PG330SN1L
100
V +
V +
TP0610K
CELLGROUP –
CMHZ5265B BAT46W
LTC6803-1 Con?guration
100nF
V –
680313 F23
C12
LTC6803-3
IC #3
DZ1
15V
1M
+
+
V
CELLGROUP +
CELLGROUP –
BLM31PG330SN1L
CMHZ5265B
100
100
V +
100nF
V –
C0
–
V +
TP0610K
D1
+
LTC6803-3 Con?guration
Figure 23. Supply Decoupling
C12
LTC6803-3
IC #2
DZ2
15V
1M
+
+
+
+
+
+
+
V –
V –
I SUPPLY
I SUPPLY
+
DZ3
15V
+
C0
+
ADVANTAGESOFKELVINCONNECTIONONC0
The V – trace resistance can cause an observable voltage
drop between the negative end of the bottom battery
cell and V – pin of LTC6803. This voltage drop will add
to the measurement error of the bottom cell voltage for
LTC6803-1. The LTC6803-3 separates C0 from V – , allow-
ing Kelvin connection on C0 as shown in Figure 24. Any
voltage drop on V – trace will not affect the bottom cell
voltage measurement. The Kelvin connection will also
allow RC filtering on V – as shown in Figure 23.
+
BATTERY
STACK
BATTERY
STACK
LTC6803-1 + LTC6803-3
+ C1
C1 C0
R R
680313 F24
Figure 24. Kelvin Connection on C0 Improving
Bottom Cell Voltage Measurement Accuracy
HARDWARE SHUTDOWN
To completely shut down the LTC6803 a PMOS switch can
be connected to V + , or V + can be driven from an isolated
power supply. Figure 25 shows an example of a switched
C0 D2
V –
TP0610K
V +
C12
1M
+
LTC6803-3 SHDN
IC #1
DZ4
1.8V
50k
V – 680313 F25
DZ1, DZ2, DZ3: MMSZ5245B
DZ4: MMSZ4678T1
ALL NPN: MMBTA42
ALL PN: RS07J
Figure 25. Hardware Shutdown Circuit Reduces Total Supply
Current of LTC6803 to Less Than 1nA
V + . The breakdown voltage of DZ4 is about 1.8V. If SHDN <
1.8V, no current will flow through the stacked MMBTA42s
and the 1M resistors. TP0610Ks will be completely shut
off. If SHDN > 2.5V, M7 will be turned on and all TP0610Ks
will be turned on.
Figure 26 is an example of isolated power supply. This
circuit provides power for two LTC6803s used to monitor
24 series connected battery cells. When 5V is removed, the
LTC6803s will draw 1nA from the battery cells. Note that
use of an external V + supply will not protect daisy-chain
SPI operation at low total stack potentials (below 5V).
680313fa
35
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC6803IG-4#PBF | 功能描述:IC MONITOR BATT STACK MC 44-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2 |
| LTC6803IG-4#TRPBF | 功能描述:IC MONITOR BATT STACK 44-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| LTC6803IG-4PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Multicell Battery Stack Monitor |
| LTC6804-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effciency Bidirectional Multicell Battery Balancer |
| LTC6804-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effciency Bidirectional Multicell Battery Balancer |
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